Wait 'til you do some international work--Russia, Africa, in particular. In Russia, one has to deal with QFE altimeters, meters, nasty terrain in a few locations and long distances. Bring packs of Marlboros or fueling may take time. Africa--just about no ATC, little security, nasty weather around the ITCZ and lots of traffic, surprisingly. Beirut last week was a pleasant break for two days.
Teterboro is no big deal, but Aspen gives me the vapors--the terrain is trickier than any elsewhere. Though, some Swiss airports I have not been to are worse.
GF